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US 8,470,897 B2Granted
Devulcanization of rubber and other elastomers
AssigneeVertex, Inc.
InventorMichel Marc
Life of this patent
Estimating the term…
Abstract
A process for devulcanizing crosslinked elastomer particles comprising applying an alternating electric field to a composition comprising crosslinked elastomer particles under compression. The alternating electric field preferably has a frequency between 1 and 100 MHz and a voltage between 1000 and 10,000 V, and may be applied between an apparatus that continuously conveys the particles through the field.
Claims21
A process for devulcanizing crosslinked elastomer particles, comprising:
- providing a composition comprising vulcanized crosslinked elastomer particles in a devulcanization apparatus;
- and
- applying an alternating electric field to said composition while said composition is compressed, said alternating electric field having a frequency and a voltage sufficient to devulcanize said crosslinked elastomer particles in a manner that results in said devulcanized composition having substantially the same surface and interior properties.
Dependencies are inferred from the claim text.